Life in West Woggle has just gotten a whole lot bigger and wackier. Oona's precious dinosaur egg has finally hatched, and out popped Stacy, an absolutely enormous baby stegosaurus. Stacy is full of energy and cannot wait to stomp, romp, and chomp her way through the prehistoric neighborhood. Oona is thrilled to show off her adorable new pet, but not everyone in town is ready for such a massive bundle of joy. It will take the help of her brother Bonk, the local bully Bruce Brute, and even a mean witch named Old Brouhaha to keep Stacy out of trouble. You will love joining Oona and her friends as they discover that sometimes the biggest, clumsiest pets are exactly what you need to save the day from ancient perils.